|N|P|Nat.|Name|Age|Moving from|Type|Transfer window|Ends|Transfer fee|
|---|---|---|---|---|---|---|---|---|---|
|20|RW|POR|Nuno Capucho|31|Porto|Transfer|Summer|2005|£0.67m|
|15|CB|Georgia|Zurab Khizanishvili|21|Dundee|Transfer|Summer|2006|Free|
|16|LB|ITA|Paolo Vanoli|30|Bologna|Transfer|Summer|2005|Free|
|25|CB|NOR|Henning Berg|33|Blackburn Rovers|Transfer|Summer|2004|Free|
|4|CM|BRA|Emerson|31|Atlético Madrid|Transfer|Summer|2005|Free|
|9|CF|NOR|Egil Østenstad|31|Blackburn Rovers|Transfer|Summer|2004|Free|
|37|LM|TUN|Hamed Namouchi|19|Cannes|Transfer|n/a|2005|Free|
||CM|FRA|Marc Kalenga|18|Auxerre|Transfer|n/a|2004|Free|
|11|CM|SCO|Gavin Rae|26|Dundee|Transfer|Winter|2007|£0.25m|
|5|CB|NED|Frank de Boer|33|Galatasaray|Transfer|Winter|2004|Free|
|52|CF|MKD|Bajram Fetai|18|B.93|Transfer|Winter|2006|£0.2m|

Question: how many players are age 21 or 33?
Answer: 2